Find the vertices and the foci of the given ellipse.
+ 
= 1
A. V: (0, 25), (16, 0);
F: (0, 5), (4, 0)
B. V: (0, -5), (0, 5);
F: (0, - 3) and (0, 3)
C. V: (0, -25), (0, 25);
F: (0, -5), (0, 5)
D. V: (-5, 0), (5, 0)
F: (- 3, 0), (3, 0)
Answer: B
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Find a 95% confidence interval for the true population proportion.During the questioning of 90 potential jury members, 36% said that they had already formed an opinion as to the guilt of the defendant.
A. 25.5% to 46.5% B. 35.9% to 36.1% C. 34.9% to 37.1% D. 30.7% to 41.3%
Solve the problem.Using a phone card to make a long distance call costs a flat fee of $0.86 plus $0.30 per minute starting with the first minute. Find the total cost of a phone call which lasts 12 minutes.
A. $4.46 B. $12.26 C. $10.62 D. $3.60
Simplify.48 ÷ 0 + 48
A. 1 B. 96 C. Undefined D. 48
Add or subtract as indicated.
- 
A. 
B. 
C. 
D. 